1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107

use serde_derive::{Deserialize, Serialize};
use serde_json::Value;
use uuid::Uuid;

#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct RequestIdV2 {
    #[serde(rename = "@type")]
    id_type: String,

    #[serde(rename = "@value")]
    value: Uuid,
}

#[derive(Serialize)]
#[serde(rename_all = "camelCase", untagged)]
pub enum Message<T> {
    #[serde(rename_all = "camelCase")]
    V1 {
        request_id: Uuid,
        op: String,
        processor: String,
        args: T,
    },
    #[serde(rename_all = "camelCase")]
    V2 {
        request_id: RequestIdV2,
        op: String,
        processor: String,
        args: T,
    },
    #[serde(rename_all = "camelCase")]
    V3 {
        request_id: Uuid,
        op: String,
        processor: String,
        args: T,
    },
}

impl<T> Message<T> {
    #[allow(dead_code)]
    pub fn id(&self) -> &Uuid {
        match self {
            Message::V1 { request_id, .. } => request_id,
            Message::V2 { request_id, .. } => &request_id.value,
            Message::V3 { request_id, .. } => request_id,
        }
    }
}
#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Response {
    pub request_id: Uuid,
    pub result: ResponseResult,
    pub status: ReponseStatus,
}

#[derive(Debug, Deserialize)]
pub struct ResponseResult {
    pub data: Value,
}

#[derive(Debug, Deserialize)]
pub struct ReponseStatus {
    pub code: i16,
    pub message: String,
}

pub fn message_with_args_v2<T>(op: String, processor: String, args: T) -> Message<T> {
    message_with_args_and_uuid_v2(op, processor, Uuid::new_v4(), args)
}

pub fn message_with_args_and_uuid_v2<T>(
    op: String,
    processor: String,
    id: Uuid,
    args: T,
) -> Message<T> {
    Message::V2 {
        request_id: RequestIdV2 {
            id_type: "g:UUID".to_string(),
            value: id,
        },
        op,
        processor,
        args,
    }
}

pub fn message_with_args<T>(op: String, processor: String, args: T) -> Message<T> {
    message_with_args_and_uuid(op, processor, Uuid::new_v4(), args)
}

pub fn message_with_args_and_uuid<T>(
    op: String,
    processor: String,
    id: Uuid,
    args: T,
) -> Message<T> {
    Message::V3 {
        request_id: id,
        op,
        processor,
        args,
    }
}